How many movies have Akira Matsuki and Mitsuo Nakai collaborated on?

They have worked on 3 movies together! Their first movie together was Ultraman Zearth 2: Superhuman Big Battle - Light and Shadow (1997) and was their highest rated movie together. They have not worked together since Ultraman Cosmos vs. Ultraman Justice: The Final Battle (2003). They are most known for their science fiction films together.